CN102774421A - Apparatus and method for determining steering angle - Google Patents
Apparatus and method for determining steering angle Download PDFInfo
- Publication number
- CN102774421A CN102774421A CN2012101353891A CN201210135389A CN102774421A CN 102774421 A CN102774421 A CN 102774421A CN 2012101353891 A CN2012101353891 A CN 2012101353891A CN 201210135389 A CN201210135389 A CN 201210135389A CN 102774421 A CN102774421 A CN 102774421A
- Authority
- CN
- China
- Prior art keywords
- steering
- scanner unit
- bearing circle
- deflection angle
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Steering Controls (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
A steering angle sensor having a first part engaged to and rotatable with a steering system and a second part providing a code. The second part immovably engages the steering system and the first part rotates about the second part to scan the code. An electrical connection between the steering system and the second part transmits an output signal upon the first part scanning the code, the output signal being representative of a steering angle. Furthermore, the invention relates to a steering column module applied in a motor vehicle and provided with the device for determining the steering angle of the steering wheel.
Description
Technical field
The present invention relates to be used for confirming the device of turning angle of steering wheel, particularly in power actuated vehicle, be used for confirming the device of turning angle of steering wheel, and relate to steering column module.
Background technology
Be used for confirming the device of turning angle of steering wheel, be used in power actuated vehicle particularly confirming that the device of turning angle of steering wheel is well-known.They also are called as the steering angle sensor device or are called for short steering angle sensor; In these devices; Usually a part forms fixing stator, and it for example is to be formed by housing or fixer, wherein rotatably installs as rotor with motor vehicle steering wheel or Steering gear bonded assembly second portion.
Rotary encoder with analog or digital angular transducer is generally used for accurately confirming angle of rotation or deflection angle.The digital angle sensor is made up of the sensor of device that is encoded and scanning encoding basically, and they rotate relative to one another.In digital increments formula rotary encoder, the device that is encoded is coding disk or have the uniformly labeled code wheel that is evenly distributed on the circumference normally, and sensor is surveyed these marks and sent signal through the output of corresponding pulses.Calculate continuous impulse so that confirm the final anglec of rotation according to hand of rotation by cusum.In order to confirm actual position in view of the above, need to set the reference position, the amount of calculating can be with reference to this reference position.This reference position is usually by being learnt by independent benchmark or zero graduation that sensor detects.By contrast, in the absolute rotary encoder of numeral, coding is by determining positions, so that for each position, angle, can produce independent signal, and it directly and conclusively show relevant position.Same angular positions in the continuous whole turnover can not be distinguished from each other out them on geometric configuration, and this is with regard to the additional measures of why having to where necessary take.
The device that is used for the deflection angle of definite the above-mentioned type comprises coding disk or the code wheel that is presented as rotor usually, and wherein sensor or scanner unit are connected with stator.Therefore the rotation of bearing circle makes coding disk produce corresponding rotation, and the sensor that this corresponding rotation is fixed is in the above described manner surveyed and provided with the form of corresponding electric signal, can confirm deflection angle according to this electric signal.
For example; DE 101 10 785 A1 disclose a kind of steering wheel sensor, and it comprises the coding disk of rotatably installing that duplicates the bearing circle anglec of rotation, and fixing scanning element; The coding of its scanning encoding dish is used for confirming bearing circle or the angle position of Steering gear in the turnover scope.Said steering angle sensor comprises calculating unit in addition, and itself and Steering gear or coding disk mechanical connection are used for the complete turnover with respect to zero position of calculated direction dish or Steering gear.
EP 1 069 026 B1 disclose a kind of steering column module that is used for power actuated vehicle, and it comprises signal transmission box, steering angle sensor and at least one steering-column switch of broadband cable through being designed to plane spiral spring transmission information and/or electric current between bearing circle and power actuated vehicle.This steering angle sensor comprises rotatably the coding disk of installing, and this coding disk is connected with the mode that rotatably the engages part with the signal transmission box that can rotate around motor vehicle steering wheel.The fixing scanner unit of being made up of optical transmitting set and optical receiver in fact is arranged on the printed circuit board (PCB), and it is static with respect to coding disk in the housing of steering column module.
If now need be in the bearing circle by the scanner unit of stator side or the deflection angle information of sensor output; In steering angle sensor device according to prior art; The steering angle signal that can on stator, obtain must twine through the common spiral of closure dish and power actuated vehicle electric power system, flexible electric conductor transmits, and this electric conductor also is called as " hairspring (clockspring) " or plane spiral spring.Yet; This spiral conductor has negative interaction aspect the signal delivery quality; When particularly high refresh rate or data transmission rate, pinpoint accuracy and/or high load currents being arranged on spiral conductor, because this spiral conductor itself has served as the conductive coil (choke coil) of the signal that will transmit in known manner.
Summary of the invention
On this basis; The objective of the invention is to propose a kind of device that is used for confirming turning angle of steering wheel; Particularly in power actuated vehicle; And a kind of steering column module, its permission provides deflection angle information with high refresh rate and data transfer rate, pinpoint accuracy and/or high load currents in bearing circle, and it also has the low spatial requirement and is easy to installs.
The objective of the invention is to realize through following technical scheme:
A kind of device that is used for confirming turning angle of steering wheel; Comprise the scanner unit of code carrier and at least one coding that is used for providing on the scanning encoding carrier, when deflection angle changed, said code carrier and scanner unit rotated relative to one another; Said scanner unit produces output signal; Can confirm deflection angle by this output signal, wherein, said scanner unit can and can be connected with bearing circle or Steering gear with the mode that rotatably engages with respect to fixing code carrier rotation.
In this device, can not be with bearing circle or the mobile fixing housing parts of Steering gear, it forms said code carrier simultaneously.
In this device, the output signal that is provided for being provided by scanner unit is measured the electronics of deflection angle and is measured system, and said electronics is measured system and can be connected with bearing circle or Steering gear with the mode that rotatably engages.
In this device, scan said coding through scanner unit according to electric power, magnetic or optical principle.
A kind of steering column module that is used for power actuated vehicle; Comprising can be with the rotatable first of bearing circle mechanical connection, with respect to first's second portion rotatably fixing or that do not move; And be arranged on said rotatable first and the second portion that rotatably engages between arrangements of electric connection; Said arrangements of electric connection comprises that the spiral that is used between bearing circle and power actuated vehicle transmission information and/or electric current twines, flexible electric conductor; It is characterized in that; With rotatable first with according to the described apparatus associated actuator that is used for confirming turning angle of steering wheel of aforementioned each claim; The scanner unit that is used for the device of definite deflection angle is associated with the first of steering column module, and the code carrier that is used for the device of definite deflection angle is associated with the second portion of steering column module, and steering angle signal directly offers actuator.
The further particularly advantageous embodiment of the present invention is open in claim.
Should be noted that, can the characteristic of in claim, mentioning separately be combined with any feasible technical approach, thereby further embodiment of the present invention is provided.In addition, specification sheets describes and has set forth characteristic of the present invention in detail very much.
According to the device that is used for confirming turning angle of steering wheel of the present invention; Particularly in power actuated vehicle; It comprises the scanner unit of code carrier and at least one coding that is used for providing on the scanning encoding carrier, and wherein when deflection angle changed, this code carrier and scanner unit rotated relative to one another; And this scanner unit produces output signal, can confirm deflection angle by this output signal.Compare with fixing code carrier, can be connected with bearing circle or Steering gear with the mode of joint rotatably with rotatable according to the scanner unit of apparatus of the present invention.
In the case; The scanner unit that coding and relevant being used to is scanned this coding is interpreted as any accessory that can relatively move each other; It is because the caused by relative motion output signal; On this basis, can confirm the degree that rotatablely move of scanner unit with respect to the code carrier that provides coding of for example coding disk or code wheel.Specifically can utilize the principle of measurement of electric power, magnetic or optics to come scanning encoding.For example, can confirm the resistance variations of appearance when corresponding scanner unit rotates like this, promptly through using potentiometer, it forms coding and forms relevant scanner unit with tap (tap) form with the resistance form.Except the simple especially scan setting of this enforcement, for example, can also use the optical measurement principle that is distributed in the mark of the definition on the code carrier based on the Magnetic Measurement principle of Hall effect or based on scanning.
The advantage that solution according to the present invention has is, the deflection angle information that can scanner unit be provided directly offers bearing circle or the Steering gear of power actuated vehicle with high refresh rate or data transfer rate, pinpoint accuracy and/or high load currents and/or in the bearing circle of power actuated vehicle or Steering gear, provides.Therefore; As top set forth; Mode through through the plane spiral spring of the choke coil that serves as signal is in fact transmitted, and that is to say that the spiral of bearing circle and electric power system through the junctor motor vehicle twines, flexible electrical conductor transmits, thereby signal quality does not receive injurious effects.
The specific embodiment
According to an advantageous embodiments of the present invention, can not form code carrier with the fixing housing parts (stator) that bearing circle or Steering gear move according to device of the present invention.The inwall of the housing parts that for example, can the coding of code carrier is applied to fix or the housing parts itself that is applied to fix.Therefore, can ignore employed in the prior art traditionally coding disk, can make up and be easier to compacter mode to install according to device of the present invention thus.
The electronics that another advantageous embodiments of the present invention provides a kind of incoming signal that is used for being provided by scanner unit to measure deflection angle is measured system, and wherein this electronics mensuration system can be connected with bearing circle or Steering gear with the mode that rotatably engages.Therefore, can especially simply connect the carrying out that electronics is measured between system and the scanner unit.For example, can electronics be measured system and scanner unit is arranged on the shared printed circuit board (PCB), this printed circuit board (PCB) can move or rotation with bearing circle or Steering gear.So being can be used as input variable by the deflection angle of electronics mensuration system measurement provides to actuator.
The steering column module that is used for power actuated vehicle according to the present invention comprise can and the rotatable first (rotor) of bearing circle mechanical connection, with respect to first's second portion (stator) rotatably fixing or that do not move and be arranged on first and second portion between arrangements of electric connection, it comprises, and the spiral that is used between bearing circle and power actuated vehicle transmission information and/or electric current twines, flexible electric conductor.Also comprise with bearing circle with according to the apparatus associated actuator that is used for confirming turning angle of steering wheel of an embodiment in the foregoing description according to steering column module of the present invention; Wherein this scanner unit that is used for the device of definite deflection angle is associated with the first of steering column module; This code carrier that is used for the device of definite deflection angle is associated with the second portion of steering column module, and steering angle signal directly offers actuator.
Steering column module according to the present invention provides sizable advantage, and its deflection angle information that can scanner unit be provided directly offers bearing circle or the Steering gear of power actuated vehicle with high refresh rate or data transmission rate, pinpoint accuracy and/or high load currents and/or in the bearing circle of power actuated vehicle or Steering gear, provides.From the second portion that does not move of steering column module to can not passing through arrangements of electric connection with first's transmission signals of bearing circle mechanical connection; Therefore, can steering angle signal be offered actuator and not have transmission loss in fact with simple especially mode.
Above-mentioned device and the steering column module according to the present invention that is used for definite turning angle of steering wheel according to the present invention is not limited to embodiment disclosed herein, also comprises the other embodiment that is equal to it.For example, steering column module can comprise one or more steering-column switch that for example are used for travel direction indicating device, lamp and/or the Windshield Wiper assembly of driving machine motor vehicle.In addition, this is used for confirming that device of deflection angle can also comprise the scanner unit of the more than one coding that is used for providing on the scanning encoding carrier.
In a preferred embodiment, the device that is used for definite turning angle of steering wheel according to the present invention is applicable to the steering column module of power actuated vehicle.
Claims (5)
1. device that is used for confirming turning angle of steering wheel; It is characterized in that; Comprise the scanner unit of code carrier and at least one coding that is used for providing on the scanning encoding carrier, when deflection angle changed, said code carrier and scanner unit rotated relative to one another; Said scanner unit produces output signal; Can confirm deflection angle by this output signal, wherein, said scanner unit can and can be connected with bearing circle or Steering gear with the mode that rotatably engages with respect to fixing code carrier rotation.
2. device according to claim 1,
It is characterized in that,
Can not be with bearing circle or the mobile fixing housing parts of Steering gear, it forms said code carrier simultaneously.
3. device according to claim 1 and 2,
It is characterized in that,
The output signal that is provided for being provided by scanner unit is measured the electronics of deflection angle and is measured system, and said electronics is measured system and can be connected with bearing circle or Steering gear with the mode that rotatably engages.
4. according to the described device of aforementioned each claim,
It is characterized in that,
Scan said coding through scanner unit according to electric power, magnetic or optical principle.
5. steering column module that is used for power actuated vehicle; Comprising can be with the rotatable first of bearing circle mechanical connection, with respect to first's second portion rotatably fixing or that do not move; And be arranged on said rotatable first and the second portion that rotatably engages between arrangements of electric connection; Said arrangements of electric connection comprises that the spiral that is used between bearing circle and power actuated vehicle transmission information and/or electric current twines, flexible electric conductor; It is characterized in that; With rotatable first with according to the described apparatus associated actuator that is used for confirming turning angle of steering wheel of aforementioned each claim; The scanner unit that is used for the device of definite deflection angle is associated with the first of steering column module, and the code carrier that is used for the device of definite deflection angle is associated with the second portion of steering column module, and steering angle signal directly offers actuator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011075635.3 | 2011-05-11 | ||
| DE102011075635.3A DE102011075635B4 (en) | 2011-05-11 | 2011-05-11 | Device for determining the steering angle of a steering wheel and steering column module equipped therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102774421A true CN102774421A (en) | 2012-11-14 |
Family
ID=47070331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101353891A Pending CN102774421A (en) | 2011-05-11 | 2012-05-02 | Apparatus and method for determining steering angle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20120286774A1 (en) |
| CN (1) | CN102774421A (en) |
| DE (1) | DE102011075635B4 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282968B1 (en) * | 1996-06-05 | 2001-09-04 | Alps Electric Co., Ltd. | Steering sensor unit |
| US6298565B1 (en) * | 1996-01-20 | 2001-10-09 | Itt Manufacturing Enterprises, Inc. | Steering angle sensor with revolution counter |
| US6554303B2 (en) * | 1996-12-19 | 2003-04-29 | Valeo Schalter Und Sensoren Gmbh | Device for measuring a steering angle and for transferring signals between a steering column and a steering rod of a motor vehicle |
| CN1962341A (en) * | 2005-11-08 | 2007-05-16 | 东洋电装株式会社 | Rotation angle sensor |
| CN101101222A (en) * | 2006-07-04 | 2008-01-09 | 东洋电装株式会社 | Rudder angle sensor |
| CN101300462A (en) * | 2005-11-04 | 2008-11-05 | 莱卡地球系统公开股份有限公司 | Opto-electrical angle measuring apparatus |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19601676A1 (en) * | 1996-01-18 | 1997-07-24 | Teves Gmbh Alfred | Steering angle sensor with evaluation of the incremental track for absolute value determination |
| US6403900B2 (en) * | 1996-07-10 | 2002-06-11 | Valeo Schalter Und Sensoren Gmbh | Compact steering column module |
| ES2186195T3 (en) * | 1997-06-28 | 2003-05-01 | Kostal Leopold Gmbh & Co Kg | PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE. |
| DE69833340T2 (en) * | 1997-07-16 | 2006-10-12 | Nsk Ltd. | Rolling bearing unit and constant velocity joint for wheels |
| JP3587674B2 (en) * | 1998-01-07 | 2004-11-10 | アルプス電気株式会社 | Rotation angle sensor, torque sensor using this rotation angle sensor, electric power steering device using this torque sensor |
| JP3621583B2 (en) * | 1998-06-30 | 2005-02-16 | アルプス電気株式会社 | Multi-rotor rotation detector |
| FR2782970B1 (en) * | 1998-09-03 | 2000-10-13 | Skf France | STEERING WHEEL DEVICE |
| JP3816679B2 (en) * | 1998-09-17 | 2006-08-30 | 株式会社東海理化電機製作所 | Rotation angle detector |
| DE19933048A1 (en) | 1999-07-15 | 2001-01-18 | Valeo Schalter & Sensoren Gmbh | Steering column module with steering angle sensor and compact design |
| DE10110785C2 (en) | 2001-03-06 | 2003-11-27 | Valeo Schalter & Sensoren Gmbh | Steering angle sensor |
| EP1632417B1 (en) * | 2004-09-03 | 2007-12-19 | Jtekt Corporation | Steering device |
| JP4506522B2 (en) * | 2005-03-16 | 2010-07-21 | トヨタ自動車株式会社 | Suspension system |
| DE102006001606A1 (en) * | 2006-01-11 | 2007-07-12 | Continental Teves Ag & Co. Ohg | Angle measuring device for measuring an absolute angular position |
| US7495432B2 (en) * | 2007-04-25 | 2009-02-24 | Aisin Seiki Kabushiki Kaisha | Angle detecting apparatus |
| US20090146650A1 (en) * | 2007-12-11 | 2009-06-11 | Nippon Soken, Inc. | Rotation angle sensor and scissors gear suitable therefor |
| US8322483B2 (en) * | 2009-09-15 | 2012-12-04 | Robert Bosch Gmbh | Steering angle sensor |
| JP5789911B2 (en) * | 2009-10-06 | 2015-10-07 | 株式会社ジェイテクト | Rotation angle detection device and electric power steering device |
-
2011
- 2011-05-11 DE DE102011075635.3A patent/DE102011075635B4/en not_active Expired - Fee Related
-
2012
- 2012-05-02 CN CN2012101353891A patent/CN102774421A/en active Pending
- 2012-05-10 US US13/468,197 patent/US20120286774A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6298565B1 (en) * | 1996-01-20 | 2001-10-09 | Itt Manufacturing Enterprises, Inc. | Steering angle sensor with revolution counter |
| US6282968B1 (en) * | 1996-06-05 | 2001-09-04 | Alps Electric Co., Ltd. | Steering sensor unit |
| US6554303B2 (en) * | 1996-12-19 | 2003-04-29 | Valeo Schalter Und Sensoren Gmbh | Device for measuring a steering angle and for transferring signals between a steering column and a steering rod of a motor vehicle |
| CN101300462A (en) * | 2005-11-04 | 2008-11-05 | 莱卡地球系统公开股份有限公司 | Opto-electrical angle measuring apparatus |
| CN1962341A (en) * | 2005-11-08 | 2007-05-16 | 东洋电装株式会社 | Rotation angle sensor |
| CN101101222A (en) * | 2006-07-04 | 2008-01-09 | 东洋电装株式会社 | Rudder angle sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011075635A1 (en) | 2012-11-15 |
| DE102011075635B4 (en) | 2014-05-08 |
| US20120286774A1 (en) | 2012-11-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121114 |